An ultrasound imaging system prototype for raw data acquisition

2012 ◽  
Author(s):  
U. Techavipoo ◽  
R. Keinprasit ◽  
P. Pinunsottikul ◽  
Y. Jewajinda ◽  
C. Punyasai ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Ultrasound Imaging ◽  
Imaging System ◽  
Raw Data ◽  
System Prototype

Smartphone-based portable ultrasound imaging system: Prototype implementation and evaluation

2015 ◽  
Author(s):  
Sewoong Ahn ◽  
Jeeun Kang ◽  
Pilsu Kim ◽  
Gunho Lee ◽  
Eunji Jeong ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Prototype Implementation ◽  
Portable Ultrasound ◽  
System Prototype

Single-element Ultrasound Imaging System based on Mirror Scanning

2020 ◽  
Author(s):  
Seongwook Choi ◽  
Jin Young Kim ◽  
Hae Gyun Lim ◽  
Jin Woo Baik ◽  
Hyung Ham Kim ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Single Element

scholarly journals Validation of Scolioscan Air-Portable Radiation-Free Three-Dimensional Ultrasound Imaging Assessment System for Scoliosis

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2858
Author(s):  
Kelly Ka-Lee Lai ◽  
Timothy Tin-Yan Lee ◽  
Michael Ka-Shing Lee ◽  
Joseph Chi-Ho Hui ◽  
Yong-Ping Zheng
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
Outcome Measurement ◽  
Three Dimensional ◽  
3D Ultrasound ◽  
Mean Difference ◽  
Assessment System ◽  
Absolute Difference ◽  
Data Sets ◽  
Low Profile

To diagnose scoliosis, the standing radiograph with Cobb’s method is the gold standard for clinical practice. Recently, three-dimensional (3D) ultrasound imaging, which is radiation-free and inexpensive, has been demonstrated to be reliable for the assessment of scoliosis and validated by several groups. A portable 3D ultrasound system for scoliosis assessment is very much demanded, as it can further extend its potential applications for scoliosis screening, diagnosis, monitoring, treatment outcome measurement, and progress prediction. The aim of this study was to investigate the reliability of a newly developed portable 3D ultrasound imaging system, Scolioscan Air, for scoliosis assessment using coronal images it generated. The system was comprised of a handheld probe and tablet PC linking with a USB cable, and the probe further included a palm-sized ultrasound module together with a low-profile optical spatial sensor. A plastic phantom with three different angle structures built-in was used to evaluate the accuracy of measurement by positioning in 10 different orientations. Then, 19 volunteers with scoliosis (13F and 6M; Age: 13.6 ± 3.2 years) with different severity of scoliosis were assessed. Each subject underwent scanning by a commercially available 3D ultrasound imaging system, Scolioscan, and the portable 3D ultrasound imaging system, with the same posture on the same date. The spinal process angles (SPA) were measured in the coronal images formed by both systems and compared with each other. The angle phantom measurement showed the measured angles well agreed with the designed values, 59.7 ± 2.9 vs. 60 degrees, 40.8 ± 1.9 vs. 40 degrees, and 20.9 ± 2.1 vs. 20 degrees. For the subject tests, results demonstrated that there was a very good agreement between the angles obtained by the two systems, with a strong correlation (R2 = 0.78) for the 29 curves measured. The absolute difference between the two data sets was 2.9 ± 1.8 degrees. In addition, there was a small mean difference of 1.2 degrees, and the differences were symmetrically distributed around the mean difference according to the Bland–Altman test. Scolioscan Air was sufficiently comparable to Scolioscan in scoliosis assessment, overcoming the space limitation of Scolioscan and thus providing wider applications. Further studies involving a larger number of subjects are worthwhile to demonstrate its potential clinical values for the management of scoliosis.

scholarly journals A Tumbling Magnetic Microrobot System for Biomedical Applications

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 861
Author(s):  
Elizabeth E. Niedert ◽  
Chenghao Bi ◽  
Georges Adam ◽  
Elly Lambert ◽  
Luis Solorio ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Biomedical Applications ◽  
Imaging System ◽  
Ex Vivo ◽  
Negative Control ◽  
Circular Path ◽  
Rotational Axis ◽  
Significant Difference

A microrobot system comprising an untethered tumbling magnetic microrobot, a two-degree-of-freedom rotating permanent magnet, and an ultrasound imaging system has been developed for in vitro and in vivo biomedical applications. The microrobot tumbles end-over-end in a net forward motion due to applied magnetic torque from the rotating magnet. By turning the rotational axis of the magnet, two-dimensional directional control is possible and the microrobot was steered along various trajectories, including a circular path and P-shaped path. The microrobot is capable of moving over the unstructured terrain within a murine colon in in vitro, in situ, and in vivo conditions, as well as a porcine colon in ex vivo conditions. High-frequency ultrasound imaging allows for real-time determination of the microrobot’s position while it is optically occluded by animal tissue. When coated with a fluorescein payload, the microrobot was shown to release the majority of the payload over a 1-h time period in phosphate-buffered saline. Cytotoxicity tests demonstrated that the microrobot’s constituent materials, SU-8 and polydimethylsiloxane (PDMS), did not show a statistically significant difference in toxicity to murine fibroblasts from the negative control, even when the materials were doped with magnetic neodymium microparticles. The microrobot system’s capabilities make it promising for targeted drug delivery and other in vivo biomedical applications.

PC-based ultrasound imaging system with microminiaturized electronics

2003 ◽  
Vol 29 (5) ◽  
pp. S86-S87
Author(s):  
A.M. Chiang
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System

Multi-channel pre-beamformed data acquisition system for research on advanced ultrasound imaging methods

2012 ◽  
Vol 59 (2) ◽  
pp. 243-253 ◽  
Author(s):  
Chris C. P. Cheung ◽  
Alfred C. H. Yu ◽  
Nazila Salimi ◽  
Billy Y. S. Yiu ◽  
Ivan K. H. Tsang ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Ultrasound Imaging ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Imaging Methods

Freehand 3D ultrasound imaging system using electromagnetic tracking

2015 ◽  
Author(s):  
Mohammad I. Daoud ◽  
Abdel-Latif Alshalalfah ◽  
Falah Awwad ◽  
Mahasen Al-Najar
Keyword(s):  
Ultrasound Imaging ◽  
Imaging System ◽  
3D Ultrasound ◽  
Electromagnetic Tracking ◽  
Freehand 3D Ultrasound
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